IMO, DOD shows that you don’t have to sacrifice developer ergonomics for performance.

ECS is vastly superior as an abstraction that pretty much everything that we had before in games. Tightly coupled inheritance chains of the 90s/2000s were minefields of bugs.

Of course perhaps not every type of app will have the same kind of goldilocks architecture, but I also doubt anyone will stumble into something like that unless they’re prioritizing it, like game programmers did.